An evaporation line on a pregnancy test is a faint non colored line that may appear if a person uses the test incorrectly.
Early detection pregnancy test faint line.
A false negative pregnancy test usually happens when testing is done too early and you are pregnant but you test negative.
Hcg levels rise exponentially in the first two months of pregnancy so the earlier the test is performed the higher the chance of a false negative result.
Missing your period is one of the easiest signs of pregnancy but getting that positive on a pregnancy test is the only way to know for sure you can get an accurate reading on some pregnancy tests as early as 6 days before your intended period and a faint line may come from an early test.
Some very sensitive pregnancy test kits can detect pregnancy as early as 6 days before your missed period 5 days before you expect your period however the levels of hcg this early are so low that you can expect any line to be faint.
First response early result pregnancy test.
For example if you dip a pregnancy test that is sensitive to 20 miu ml hcg in a sample of urine containing precisely 20 miu ml hcg the test manufacturer is expecting this test to yield a positive.
Most early result pregnancy tests can only detect hcg when it rises.
Less sensitive urine tests and qualitative blood tests may not.
Unfortunately a faint positive line can also be a sign of a very early miscarriage sometimes called a chemical pregnancy which occurs within the first 12 weeks of a pregnancy often much earlier.
The reason you would see a faint line on a pregnancy test is that the hcg level is probably very close to the sensitivity threshold of the test.
In early pregnancy hcg levels rise exponentially and you will be likely to see a faint positive grow bolder in a matter of a few days.
Easy home ovulation pregnancy strips.
Even though you will likely pass more hcg in your urine as the pregnancy progresses a home test will not necessarily reveal a darker line hour by hour or day by day.
So an extremely faint line on pregnancy test means you are just a few days away from getting pregnant.
Different tests detect hcg at different levels from 20miu to 100miu or more.
20 miu tests will display a faint line when when hcg levels are at 20 miu while less sensitive tests will display a negative result.
Whether you re looking for early pregnancy detection or an inexpensive option here are the best pregnancy tests of 2020.